Mercurial > prosody-modules
annotate mod_privilege/README.markdown @ 5403:c574aaaa4d57
mod_http_oauth2: Simplify validation of various URIs
Why: diffstat
How: Reuse of the redirect_uri_allowed() function
author | Kim Alvefur <zash@zash.se> |
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date | Tue, 02 May 2023 16:23:05 +0200 |
parents | 3ddab718f717 |
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rev | line source |
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1 --- |
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2 labels: |
4913 | 3 - 'Stage-Beta' |
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4 summary: 'XEP-0356 (Privileged Entity) implementation' |
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5 ... |
1782 | 6 |
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7 Introduction |
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8 ============ |
1782 | 9 |
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10 Privileged Entity is an extension which allows entity/component to have |
4913 | 11 privileged access to server (set/get roster, send message on behalf of server, |
12 send IQ stanza on behalf of user, access presence information). It can be used | |
13 to build services independently of server (e.g.: PEP service). | |
1782 | 14 |
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15 Details |
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16 ======= |
1782 | 17 |
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18 You can have all the details by reading the |
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19 [XEP-0356](http://xmpp.org/extensions/xep-0356.html). |
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20 |
4913 | 21 Only the latest version of the XEP is implemented (using namespace |
22 `urn:xmpp:privilege:2`), if your component use an older version, please update. | |
23 | |
24 Note that roster permission is not fully implemented yet, roster pushes are not yet sent | |
25 to privileged entity. | |
26 | |
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27 Usage |
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28 ===== |
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29 |
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30 To use the module, like usual add **"privilege"** to your |
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31 modules\_enabled. Note that if you use it with a local component, you |
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32 also need to activate the module in your component section: |
1782 | 33 |
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34 modules_enabled = { |
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35 [...] |
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36 |
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37 "privilege"; |
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38 } |
1782 | 39 |
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40 [...] |
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41 |
4913 | 42 Component "pubsub.yourdomain.tld" |
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43 component_secret = "yourpassword" |
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44 modules_enabled = {"privilege"} |
1782 | 45 |
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46 then specify privileged entities **in your host section** like that: |
1782 | 47 |
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48 VirtualHost "yourdomain.tld" |
1782 | 49 |
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50 privileged_entities = { |
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51 ["romeo@montaigu.lit"] = { |
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52 roster = "get"; |
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53 presence = "managed_entity"; |
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54 }, |
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55 ["juliet@capulet.lit"] = { |
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56 roster = "both"; |
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57 message = "outgoing"; |
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58 presence = "roster"; |
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59 }, |
4913 | 60 ["pubsub.yourdomain.tld"] = { |
61 roster = "get"; | |
62 message = "outgoing"; | |
63 presence = "roster"; | |
64 iq = { | |
65 ["http://jabber.org/protocol/pubsub"] = "set"; | |
66 }; | |
67 }, | |
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68 } |
1782 | 69 |
4913 | 70 Here *romeo@montaigu.lit* can **get** roster of anybody on the host, and will |
71 **have presence for any user** of the host, while *juliet@capulet.lit* can | |
72 **get** and **set** a roster, **send messages** on behalf of the server, and | |
73 **access presence of anybody linked to the host** (not only people on the | |
74 server, but also people in rosters of users of the server). | |
1782 | 75 |
4913 | 76 *pubsub.yourdomain.tld* is a Pubsub/PEP component which can **get** roster of |
77 anybody on the host, **send messages** on the behalf of the server, **access | |
78 presence of anybody linked to the host**, and **send IQ stanza of type "set" for | |
79 the namespace "http://jabber.org/protocol/pubsub"** (this can be used to | |
80 implement XEP-0376 "Pubsub Account Management"). | |
81 | |
82 **/!\\Â Be extra careful when you give a permission to an entity/component, it's | |
83 a powerful access, only do it if you absolutely trust the component/entity, and | |
84 you know where the software is coming from** | |
1782 | 85 |
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86 Configuration |
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87 ============= |
1782 | 88 |
4913 | 89 roster |
90 ------ | |
91 | |
1782 | 92 All the permissions give access to all accounts of the virtual host. |
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93 |
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94 -------- ------------------------------------------------ ---------------------- |
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95 roster none *(default)* No access to rosters |
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96 get Allow **read** access to rosters |
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97 set Allow **write** access to rosters |
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98 both Allow **read** and **write** access to rosters |
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99 -------- ------------------------------------------------ ---------------------- |
1782 | 100 |
4913 | 101 Note that roster implementation is incomplete at the moment, roster pushes are not yet |
102 send to privileged entity. | |
103 | |
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104 message |
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105 ------- |
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106 |
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107 ------------------ ------------------------------------------------------------ |
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108 none *(default)* Can't send message from server |
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109 outgoing Allow to send message on behalf of server (from bare jids) |
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110 ------------------ ------------------------------------------------------------ |
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111 |
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112 presence |
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113 -------- |
1782 | 114 |
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115 ------------------ ------------------------------------------------------------------------------------------------ |
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116 none *(default)* Do not have extra presence information |
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117 managed\_entity Receive presence stanzas (except subscriptions) from host users |
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118 roster Receive all presence stanzas (except subsciptions) from host users and people in their rosters |
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119 ------------------ ------------------------------------------------------------------------------------------------ |
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120 |
4913 | 121 iq |
122 -- | |
123 | |
124 IQ permission is a table mapping allowed namespaces to allowed stanza type. When | |
125 a namespace is specified, IQ stanza of the specified type (see below) can be | |
126 sent if and only if the first child element of the IQ stanza has the specified | |
127 namespace. See https://xmpp.org/extensions/xep-0356.html#iq for details. | |
128 | |
129 Allowed stanza type: | |
130 | |
131 -------- ------------------------------------------- | |
132 get Allow IQ stanza of type **get** | |
133 set Allow IQ stanza of type **set** | |
134 both Allow IQ stanza of type **get** and **set** | |
135 -------- ------------------------------------------- | |
136 | |
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137 Compatibility |
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138 ============= |
1782 | 139 |
1992 | 140 If you use it with Prosody 0.9 and with a component, you need to patch |
141 core/mod\_component.lua to fire a new signal. To do it, copy the | |
142 following patch in a, for example, /tmp/component.patch file: | |
143 | |
144 ``` {.patch} | |
145 diff --git a/plugins/mod_component.lua b/plugins/mod_component.lua | |
146 --- a/plugins/mod_component.lua | |
147 +++ b/plugins/mod_component.lua | |
148 @@ -85,6 +85,7 @@ | |
149 session.type = "component"; | |
150 module:log("info", "External component successfully authenticated"); | |
151 session.send(st.stanza("handshake")); | |
152 + module:fire_event("component-authenticated", { session = session }); | |
153 | |
154 return true; | |
155 end | |
156 ``` | |
157 | |
158 Then, at the root of prosody, enter: | |
159 | |
160 `patch -p1 < /tmp/component.patch` | |
161 | |
4913 | 162 ----- -------------------------------------------------- |
163 trunk Works | |
164 0.12 Works | |
165 0.11 Works | |
1992 | 166 0.10 Works |
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167 0.9 Need a patched core/mod\_component.lua (see above) |
4913 | 168 ----- -------------------------------------------------- |
1782 | 169 |
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170 Note |
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171 ==== |
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172 |
4913 | 173 This module is often used with mod\_delegation (c.f. XEP for more details) |